Full-scale experiment on dynamic characteristics of tunnel invert using rubberized concrete

被引：0

作者：

Jin H. ^{[1
]}

Tian Q. ^{[2
]}

Li Z. ^{[2
]}

机构：

[1] School of Transportation, Southeast University, Nanjing

[2] Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 16期

关键词：

full-scale experiment; rubberized concrete; subway; track vibration; tunnel invert;

D O I：

10.13465/j.cnki.jvs.2022.16.032

中图分类号：

学科分类号：

摘要：

With the opening and operation of a large number of subway lines, the problem of railway vibration has been paid more and more attention. In this paper, a full-scale platform of tunnel invert is constructed. Through the vibration experiment, vibration acceleration spectrum, vibration acceleration level, transfer loss, insertion loss were analyzed. Results show that: (1) the vibration reduction frequency of rubberized concrete is mainly in 1-63 Hz; (2) in 1-200 Hz, the transfer loss of rubberized concrete is generally greater than that of traditional concrete; (3) in 1-100 Hz, the insertion loss of rubberized concrete is generally positive; (4) compared rubberized concrete and traditional concrete, the difference of mean square root of vibration level at the tunnel wall is about 1.9 dB. This paper provides experimental data for the application of rubberized concrete in subway. © 2022 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：249 / 254

页数：5

共 16 条

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